Brush your fragile hair without pulling or breaking it.| How do you brush fine hair without damaging it? The answer is the Tangle Teezer Ultimate Detangler Fine & Fragile brush for fragile hair. Thanks to the patented Soft-Flex technology of the flexible two-tiered teeth, it detangles knots without uncomfortable tugging and breakage. The longer teeth remove tangles, while the shorter ones smooth the hair and add shine.